On Sun, 2020-04-19 at 14:20 +0200, Juozas Miškinis wrote:
> Hey everyone!
>
> I've been having some trouble trying to capture the "add/remove task
> list" events in evolution-data-server and I was hoping that you could
> perhaps clear some things up for me.
>
> 1) Here's a barebone #ESourceRegistryWatcher implementation in gjs
> (returns no errors) which DOESN'T WORK (i.e. _onAppeared and
> _onDisappeared methods aren't executed upon task list
> addition/removal): https://paste.gnome.org/pboxc98jo
> 2) Here's a similar WORKING approach that combines
> #ESourceRegistryWatcher and ESourceRegistry::source-added signal
> (which captures all types of #ESources):
> https://paste.gnome.org/phr0crkit
>
> The reason to combine them here is not clear to me, but without the
> watcher (i.e. if I removed line 27 in
> https://paste.gnome.org/phr0crkit), registry.connect('source-
> added'...) wouldn't work either.
>
> Here's my main question: is there anything obviously wrong with what
> I have in #1?
Hi,
I'm sorry I cannot help more, I do not speak gjs-ish, especially how it
works with respect of asynchronous calls, but I have few guesses, like
I'd rather use synchronous calls and make sure the variables you
assigned the instances to are not vanished during garbage collection.
Again, I do not know how gjs works and what it does with the GObject
introspection generated code.
I know that the ESourceRegistryWatcher works properly, it is used by
evolution-alarm-notify and some other parts of Evolution itself.
I'd also try to use C, to see whether it'll work, which may prove the
problem in the gjs code/usage, not in evolution-data-server itself.
Bye,
Milan
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